20856360

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{3547}}^1$

素因数の和:3575

約数の個数: 96

約数和(自身を含む): 72804960

約数和(自身を除く): 51948600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 294, 392, 420, 490, 588, 735, 840, 980, 1176, 1470, 1960, 2940, 3547, 5880, 7094, 10641, 14188, 17735, 21282, 24829, 28376, 35470, 42564, 49658, 53205, 70940, 74487, 85128, 99316, 106410, 124145, 141880, 148974, 173803, 198632, 212820, 248290, 297948, 347606, 372435, 425640, 496580, 521409, 595896, 695212, 744870, 869015, 993160, 1042818, 1390424, 1489740, 1738030, 2085636, 2607045, 2979480, 3476060, 4171272, 5214090, 6952120, 10428180, 20856360]

約数ペア:

[(1, 20856360), (2, 10428180), (3, 6952120), (4, 5214090), (5, 4171272), (6, 3476060), (7, 2979480), (8, 2607045), (10, 2085636), (12, 1738030), (14, 1489740), (15, 1390424), (20, 1042818), (21, 993160), (24, 869015), (28, 744870), (30, 695212), (35, 595896), (40, 521409), (42, 496580), (49, 425640), (56, 372435), (60, 347606), (70, 297948), (84, 248290), (98, 212820), (105, 198632), (120, 173803), (140, 148974), (147, 141880), (168, 124145), (196, 106410), (210, 99316), (245, 85128), (280, 74487), (294, 70940), (392, 53205), (420, 49658), (490, 42564), (588, 35470), (735, 28376), (840, 24829), (980, 21282), (1176, 17735), (1470, 14188), (1960, 10641), (2940, 7094), (3547, 5880)]